An example method for mapping of medical code schemes includes processing a plurality of coded concepts to determine a potential match between a code from a first code scheme in the plurality of coded concepts and a code from a second code scheme in the plurality of coded concepts. The method includes assigning a probability to each potential match of a code from the first code scheme and a code from the second code scheme. The method includes generating an alphanumeric indication of the probability of each potential match between the first code scheme and the second code scheme from the plurality of coded concepts and generating a graphical representation of the plurality of coded concepts. The method includes outputting the alphanumeric indication and the graphical representation to a user and accepting user input to select a match between the first code scheme and the second code scheme.